Type-writing machine



(No Model.) 3 SheetsSheet 1.

G. G. W. PEGK.

TYPE WRITING} MACHINE.

No. 580,117. Patented Apr. '6, 1897.

WITNESSES INVENTOR:

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By Ins Alzomey (No Model.) 0 G W PEGK 3 Sheets-Sheet 3 TYPE WRITING MACHIKE.

No. 580,117. Patented Apr. 6. 1897.

INVENTOR; mum 64. M By his Attorney WITNESSES:

n4: mums mans 1A.. mo'ruuwm wuu UNITED STATES PATENT OFFICE.

CARLTON O. W. PEOK, OF NEW YORK, N. Y., ASSIGNOR TO THE IVYOKOFF,SEAMANS & BENEDICT, OF ILION, NEIV YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 580,117, dated April 6,1897.

Application filed July 6, 1896, Serial No. 598,094. (No model.)

To all whom it may concern:

Be it known that I, CARLTON 0. WV. PECK, a citizen of the United States,and a resident of New York city, in the county of New York and State ofNew York, have invented certain new and useful Improvements inType-W'riting Machines, of which the following is a specification.

My improvements relate, first, to the provision of means for enablingthe operator to effect afeed of the carriage two letter-spacessimultaneously with the impression of the last letter of a word, and,secondly, to the provision of means whereby the paper-carriage I 5 maybe retracted a letter-space to enable the insertion of a letter whichmay have been skipped, or the making of a correction, without using therelease-key or pushing the carriage back by direct application of thehand. My improvements consist in the several features of constructionand combinations of devices hereinafter more fully described, andparticularly pointed out in the appended claims. 2 5 In the accompanyingdrawings, Figure 1 is a top plan view of a Brooks type-writing machineinvolving my improvements, the paper-carriage, type-bars, 850., beingomitted to conduce to clearness. Fig. 2 is a central longitudinalvertical section with the carriage and type-bars therein. Fig. 3 is adetail perspective view of the carriage-retracting devices. liig. 4 is avertical section taken at the line so a: of Fig. 1, but with part of thecar- 55 riage added; and Fig. 5 is an enlarged perspective view of. thecarriage escapement mechanism and the means relating to the first partof my invention.

In the various views the same part will be found designated by the samenumeral of reference.

1 designates the general framework of the machine; 2, thepaper-carriage; 3, the guiderails therefor; 4,the type-bars 5,theconnect- 5' ing-rods, and 6 the key-levers for operating said type bars.The said levers are ful crumed upon a cross-bar 7 and pass throughslotted guide-plates 8 and 9, arranged transversely of themachine andattached to the side frames.

The carriage, as usual, is provided with a spring-drum 10, apulling-cord 11, and a vertically-arranged feed-rack 12, with whichcooperates the usual rigid dog 13 and the pivoted springacted dog l4,both of which dogs are mounted on an arm or lug 15, rising from arock-shaft or rocker-bar l6,extending across the machine and providedwith end pivots 1'7.

From said rocker-bar extend rearwardly two arms 18, to which areattached a universal bar 19. The said universal bar likewise eX- tendsacross the machine and hangs over the rear arms of the letter orcharacter keylevers 6, the arrangement being such, as usual, that whenthe button or key ends of said levers are depressed their rear ends riseand lift the universal bar, thereby rocking the bar 16 and causing thedogs to vibrate forwardly,a spring 20 being provided to return therocking frame, composed of the bars 16, 18, and 19, to its normalposition upon release of the keylever.

The feeding-dog 14 is pivoted on a forwardly-projecting stud 21 and isprovided with a spring 22, which operates to throw the upper or workingend of the dog toward the right, viewed from the front of the machine,when said dog is rocked out of engagement with the rack, a notch ofwhich it normally occupies, and when in its normal position the upperportion of the dog bears against a fixed stop 23 on the arm 15. Said dogis provided with a lateral arm 24, which extends toward the right, whicharm is adapted to cooperate with either of two movable stops or devicesforming a part of the means whereby the first part of my invention iscarried out.

On the rocker-bar 16 is pivoted, on the plain portion of a screw 25, astop 26 and also a parallel stop 27. The stop 26 has an integral o earor lug 28, to which is attached the inner end of a wire 29, whose outerend is attached to one arm of a bell-crank 30, pivoted at 31 on a standor bracket 32, which is secured to the framework. Attached at one end tothe 5 other end of said bell-crank is another wire 33, whose oppositeend is attached to the vertical arm 34 of a horizontally-arranged bail35, which extends across the machine under all of the forward arms ofthe key-levers and I00 which is pivoted at 36 to brackets 37, secured tothe rear comb or guide plate 8. A spring 38 is provided to hold saidbail up against the key-levers and to return it and its connectedmovable parts to their normal positions upon release of the key-levers.The second stop 27 has an arm 39, which projects toward the left andrests upon the up er edge of the rear arm of the space-key lever 40,which is likewise fulcrumed upon the cross bar 7 and which is adapted toactuate the universal bar 19 when the bar or key-head 41 at its forwardend is depressed.

By the means described when a letter-key is depressed alone the carriagefeeds one letter-space only, and when the space-key lever is depressedalone the carriage likewise feeds one letter-space only, but when aletter-key and the space-key are depressed conjointly then the carriagefeeds two letter-spaces; but I do not claim this improvement broadly,because it is the invention of Byron A. Brooks, whose application forpatent was filed simultaneously with this and became Patent No. 572,289,dated December 1, 1896.

The feeding movements of the carriage are effected in the followingmanner: When any letter-key is struck alone, it vibrates the universalbar 19 and throws the pivoted dog 1% forward out of the rack and thedetainingdog 13 into the rack. At the same time the said lever depressesthe bail 35, thereby rocking the arm 34, and the movements of the wiresor links and the bell-crank cause the pivoted stop 26, which normallystands under the end of the arm 24, to be withdrawn or vibrated towardthe right out of the reach of said arm ,which,immediately the dogletleaves the rack, is vibrated downwardly by means of the spring 22,which at the same moment causes the dog-point or working end to vibratetoward the right. The withdrawal of the stop 26 does not, however, haveany effect upon the independent stop 27, which at this time remains inits normal position and acts to arrest the downward vibration of saidarm 2% and to limit the vibration of the dog 14 to a distance of onetooth or notch of the feedrack. Hence when the key-lever is released andthe dog returns to engagement with the rack the paper-carriage will feedthe distance of one letter-spa ce only. When the spacekey is depressed,the dog 1a is rocked out of the rack 4, and at the same time the arm 39is raised and the stop 27 is vibrated toward the right independently ofthe stop 26. The stop 26 is at this time prevented from like vibrationby reason of the provision in the bail of a notch a2, which permits theforward arm of the space-key lever to descend without imparting anymotion to said bail and its connected parts. Hence by the mechanismshown and described it will be seen that when either stop is moved theother is left stationary and serves to arrest the vibration of the dogand limit it to a one-space movement.

Now when it may be desired to effect a double-space movement of thecarriage any letter-key and the space-key are simultaneously depressed,and when so actuated both the stops 26 and 27 will be vibrated towardthe right entirely out of the path of vibration of the arm 24, and thedog will move for a distance of two notches on the feed-rack, and sothat when the said keys are released the carriage-will feed the desiredtwo spaces. WVhen both stops are withdrawn, as just explained, the dogis restricted to a two-space vibration by means of a lug 43 on itsleft-hand side,which at this time comes in contact with the stop or pin23 on the arm 15.

Thus it will be seen that simple and elfective means are providedwhereby during the ordinary type-impressions the carriage is enabled tofeed only one letter-space distance, and whereby during the ordinaryspace-key movement the carriage is likewise enabled to feed but a singleletter-space, and by which also when any letter-key and the space-keyare simultaneously depressed in the ordinary way the carriage may be feda double space precisely in accordance with the Brooks invention andwithout the use of any auxiliary key or any change in the ordinary orregular operations or movements of the letter-keys and the space-key.

I shall now describe the construction and mode of operation of the meansfor retracting the paper-carriage.

On a suitable supporting plate or stand 44 is mounted a bracket 45, inthe ears of which is horizontally supported a rock-shaft 46, which isprovided with a crank-arm 47, to which is connected the upper end of alink 48, whose lower end is attached to the rear end of a key-lever L9,pivoted at to said stand and provided at its forward end with a buttonor key 51. The said rock-shaft is provided at its inner or rear end witha head 52, fashioned or provided with a rearwardly-extending beveledfinger 53, adapted to engage the teeth of the feed-rack 12. The saidhead may be attached to the rock-shaft by a setscrew 54, and saidrock-shaft is preferably provided with a return ing-sprin g and with twostop-pins 56 and 57. Normally the finger 53 stands below the plane ofthe teeth of the feed-rack and does not interfere with the ordinarymovements of the rack and papercarria-ge. hen, however, it may bedesired to cause the paper-carriage to move back one letter-space tomake a correction or to insert a character, the key orhead 51 isdepressed, the lever a9 vibrated, the shaft 46 rocked through theintervention of the link or thrustrod 48 and the crank 47, and thefinger 53, which is arranged eccentric of the long pivot or shaft -16,is caused to rise and enter one of the notches of the feed-rack, and asthe pressure on the key is continued the said finger by bearing againstthe tooth at the right-hand side of the said notch operates to retractthe carriage a letter-space distance, and while the key is thus helddown and the carriage is thus retracted the desired letter-key isactuated to print the character in the space thus brought back to theimpression-point. After such printing the retracting-key is released andthe carriage returns to its first position under the influence of thespring-drum, and at the same time the retracting-finger, with all themovable parts between it, and the key return to their normal positionsunder the influence of the spring 55.

lVhen the carriage is retracted, as above described, the feeding-dog 14:yields or vibrates with the movement of the rack toward the right, butdoes not leave the notch with which it is in engagement, and thereforewhen the retracting-key is released the carriage returns to exactly thesame place which it was at before the retracting-key was actuated. Thepin 56 stops the return of the retracting means, under the influence ofthe spring 55, by striking against the bracket 45, and hence determinesthe normal positions of the devices comprising said means. The pin 57strikes against the opposite edge of said bracket 45 and limits thedepression of the retracting-key, and hence the swing of the finger 53and the movement of the feed-rack in the retracting operation.

Various changes in construction 7 and arrangement may be made withoutdeparting from the several features of my invention, which of course maybe embodied in other styles of machines and in connection with feed orescapement mechanisms varying considerably in detail construction.

That I claim as new, and desire to secure by Letters Patent, is

1. In a type-writing machine, the combination of a paper-carriage, aletter-space escapement mechanism including a pivoted spring-acted dog,a pair of independent movable stops each adapted to arrest the vibrationof said dog and limit it to a one-space movement, letter-keys, meansintermediate said letter-keys and one of said stops whereby when any ofsaid letter-keys is depressed said stop is moved, and a space-keyadapted only to move the other of said stops; the construction andarrangement being such that when both a letter-key and the space-key aresimultaneously depressed both said stops are moved to enable the dog tovibrate two letter-spaces and the carriage to feed a like distance uponthe release of both said depressed keys; substantially as set forth.

2. In a type-writing machine, the combination of a paper-carriage, aletter-space escapement mechanism including a pivoted spring-acted dog,a pair of independent pivoted stops, one connected to be operated by theletter-keys and the other connected to be operated by the space-key, andboth adapted to be operated simultaneously when both a letter-key andthe space-key are actuated; substantially as set forth.

3. In a type-writing machine, the combination of a paper-carriage, aletter-space escapement mechanism including a pivoted spring-acted doghaving an arm, two independent pivoted stops, one of said stops havingan arm arranged to be acted upon by the space-key lever, a bail adaptedto be actuated by the letter-keys, and connections from said bail to theother of said stops; substantially as set forth.

4. In a type-writing machine, the combination of a paper-carriage, aletter-space escapement mechanism including a spring-acted dog having anarm and a lug, a stop for said lug to act against, a pair of independentpivoted stops, a link connected to one of said stops and to abell-crank, another link connected to said bell-crank and to a bailprovided with a notch or cut-away, letter-ke y levers adapted to actuatesaid bail, a returnspring for the latter, and a space-key lever adaptedto act on the other one of said pair of pivoted stops; substantially asset forth.

5. In a type-writing machine, the combination of a paper-carriage, aletter-space escapement mechanism comprising a feedingdog and afeed-rack, a finger adapted to engage said rack mounted eccentrically onthe pivot or rock-shaft, a crank on said pivot or rock-shaft, akey-lever connected to said crank for throwing the said fingerintoengagement with the feed-rack, and a spring for returning the partssubstantially as set forth.

6. In a type-writing machine, the combination of a paper-carriage, aletter-space escapement mechanism comprising a feedingdog and afeed-rack, a pivot or rock-shaft having stops to limit its motions, aretracting-finger, and a crank-arm, a key-lever connected to saidcrank-arm, and a returning spring; substantially as set forth.

Signed at New York city, in the county of New York and State of NewYork, this 1st day of July, A. D. 1896.

CARLTON O. W. PEOK.

lVitnesses D. SoLIs RITTERBAND, K. E. DONOVAN.

